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GB - Chinese national standards - Page 323

Standards GB - Chinese national standards - Page 323

Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level. Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document

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Preview GB/T 13748.17-2005 26.7.2005
GB/T 13748.17-2005

Chemical analysis methods of magnesium and magnesium alloys Determination of kalium content and natrium content Flame atomic absorption spectrophotometric method

Standard published on 26.7.2005

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Preview GB/T 13748.18-2005 26.7.2005
GB/T 13748.18-2005

Chemical analysis methods of magnesium and magnesium alloys Determination of chlorine content Silver chlorine turbidimetric method

Standard published on 26.7.2005

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226.80 USD


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Preview GB/T 13748.19-2005 26.7.2005
GB/T 13748.19-2005

Chemical analysis methods of magnesium and magnesium alloys Determination of titanium content Diantipyrylmethane spectrophotometric method

Standard published on 26.7.2005

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Preview GB/T 13748.2-2005 26.7.2005
GB/T 13748.2-2005

Chemical analysis methods of magnesium and magnesium alloys Determination of tin content Pyrocatechol violet spectrophotometric method

Standard published on 26.7.2005

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Preview GB/T 13748.20-2024 25.4.2024
GB/T 13748.20-2024

Methods for chemical analysis of magnesium and magnesium alloys—Part 20Determination of elements content—Inductively coupled plasma atomic emission spectrometric method

Standard published on 25.4.2024

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in 4 working days
Preview GB/T 13748.21-2009 15.4.2009
GB/T 13748.21-2009

Chemical analysis methods of magnesium and magnesium alloys - Part 21: Determination of elements by photoelectric direct reading atomic emission spectrometry

Standard published on 15.4.2009

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Preview GB/T 13748.22-2013 27.11.2013
GB/T 13748.22-2013

Chemical analysis methods of magnesium and magnesium alloys - Part 22Determination of thorium content

Standard published on 27.11.2013

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Preview GB/T 13748.23-2024 26.10.2024
GB/T 13748.23-2024

Methods for chemical analysis of magnesium and magnesium alloys—Part 23: Determination of elements content—Wavelength dispersive X-ray fluorescence spectrometric method

Standard published on 26.10.2024

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Preview GB/T 13748.24-2025 24.1.2025
GB/T 13748.24-2025

Methods for chemical analysis of magnesium and magnesium alloysPart 24: Determination of trace impurity elements contentsGlow discharge mass spectrometry

Standard published on 24.1.2025

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Preview GB/T 13748.3-2005 26.7.2005
GB/T 13748.3-2005

Chemical analysis methods of magnesium and magnesium alloys Determination of lithium content Flame atomic absorption spectrometric method

Standard published on 26.7.2005

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